| NaCl胁迫下激素预浸种对向日葵种子萌发的影响 |
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| 引用本文： | 颜宏,赵伟,胡晓悦,牛春雨,罗晓艺,邓纯臻.NaCl胁迫下激素预浸种对向日葵种子萌发的影响[J].东北师大学报(自然科学版),2012(1):136-139. |
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| 作者姓名： | 颜宏 赵伟 胡晓悦 牛春雨 罗晓艺 邓纯臻 |
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| 作者单位： | 东北师范大学生命科学学院;空军航空大学航空救生系 |
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| 基金项目： | 国家自然科学基金资助项目(J0830627-2) |
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| 摘 要： | 研究了胁迫条件下利用生长素(IAA)、赤霉素(GA3)、细胞分裂素(6-BA)、脱落酸(ABA)预浸种对向日葵(Helianthus annuus)种子萌发的影响.结果表明:在NaCl胁迫条件下,向日葵种子的萌发受到抑制,种子发芽率、发芽指数、活力指数都随着盐浓度的增加而降低.4种激素的浸种处理,不同程度地促进了向日葵种子的萌发(P<0.05),缩短了发芽时间,提高了向日葵的发芽指数、活力指数.其中缓解效果最明显的是6-BA,而浸种处理对向日葵种子萌发影响最小的是IAA.
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| 关 键 词： | 向日葵 植物激素 浸种 |
Influences of priming treatments of plant hormones on seed germination of Helianthus annuus under salt stress |
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| YAN Hong,ZHAO Wei,HU Xiao-yue,NIU Chun-yu,LUO Xiao-yi,DENG Chun-zhen.Influences of priming treatments of plant hormones on seed germination of Helianthus annuus under salt stress[J].Journal of Northeast Normal University (Natural Science Edition),2012(1):136-139. |
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| Authors: | YAN Hong ZHAO Wei HU Xiao-yue NIU Chun-yu LUO Xiao-yi DENG Chun-zhen |
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| Institution: | 1(1.School of Life Sciences,Northeast Normal University,Changchun 130024,China; 2.Department of Avigation Lifesaving,Avigation University of Air Force,Changchun 130022,China) |
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| Abstract: | Priming is a treatment applied for seed enhancement.Effects of hormonal priming by auxin(IAA),gibberellin(GA3),cytokinin(6-BA),and ABA at 10 mg/L on the seeds of Helianthus annuus were evaluated under salt stress.Results suggested that seed germination percentage,germination index,and vigor index were decreased with increasing the NaCl concentration.The priming treatment shortened the emergence time and enhanced the energy and index of seedling emergence.the seed germination 6-BA had the most positive effect on percent emergence,germination index,and vigor index;auxin had the least positive effects on the seed germination of H.annuus. |
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| Keywords: | Helianthus annuus plant hormone priming |
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